CN203747020U - Built-in antenna for portable terminal - Google Patents
Built-in antenna for portable terminal Download PDFInfo
- Publication number
- CN203747020U CN203747020U CN201420084264.5U CN201420084264U CN203747020U CN 203747020 U CN203747020 U CN 203747020U CN 201420084264 U CN201420084264 U CN 201420084264U CN 203747020 U CN203747020 U CN 203747020U
- Authority
- CN
- China
- Prior art keywords
- antenna
- portable terminal
- terminal device
- power supply
- pcb
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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Classifications
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q1/00—Details of, or arrangements associated with, antennas
- H01Q1/12—Supports; Mounting means
- H01Q1/22—Supports; Mounting means by structural association with other equipment or articles
- H01Q1/24—Supports; Mounting means by structural association with other equipment or articles with receiving set
- H01Q1/241—Supports; Mounting means by structural association with other equipment or articles with receiving set used in mobile communications, e.g. GSM
- H01Q1/242—Supports; Mounting means by structural association with other equipment or articles with receiving set used in mobile communications, e.g. GSM specially adapted for hand-held use
- H01Q1/243—Supports; Mounting means by structural association with other equipment or articles with receiving set used in mobile communications, e.g. GSM specially adapted for hand-held use with built-in antennas
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q1/00—Details of, or arrangements associated with, antennas
- H01Q1/44—Details of, or arrangements associated with, antennas using equipment having another main function to serve additionally as an antenna, e.g. means for giving an antenna an aesthetic aspect
- H01Q1/46—Electric supply lines or communication lines
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q5/00—Arrangements for simultaneous operation of antennas on two or more different wavebands, e.g. dual-band or multi-band arrangements
- H01Q5/50—Feeding or matching arrangements for broad-band or multi-band operation
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q9/00—Electrically-short antennas having dimensions not more than twice the operating wavelength and consisting of conductive active radiating elements
- H01Q9/04—Resonant antennas
- H01Q9/0407—Substantially flat resonant element parallel to ground plane, e.g. patch antenna
- H01Q9/045—Substantially flat resonant element parallel to ground plane, e.g. patch antenna with particular feeding means
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q9/00—Electrically-short antennas having dimensions not more than twice the operating wavelength and consisting of conductive active radiating elements
- H01Q9/04—Resonant antennas
- H01Q9/16—Resonant antennas with feed intermediate between the extremities of the antenna, e.g. centre-fed dipole
- H01Q9/28—Conical, cylindrical, cage, strip, gauze, or like elements having an extended radiating surface; Elements comprising two conical surfaces having collinear axes and adjacent apices and fed by two-conductor transmission lines
- H01Q9/285—Planar dipole
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q9/00—Electrically-short antennas having dimensions not more than twice the operating wavelength and consisting of conductive active radiating elements
- H01Q9/04—Resonant antennas
- H01Q9/30—Resonant antennas with feed to end of elongated active element, e.g. unipole
- H01Q9/40—Element having extended radiating surface
Abstract
The utility model discloses a built-in antenna for a portable terminal. According to the preferred embodiment of the utility model, the built-in antenna for the portable terminal comprises a single power supply unit, a first antenna and a second antenna, wherein the first antenna receives and transmits electromagnetic waves through a metal pattern powered by the single power supply unit; and the second antenna is bifurcated from the single power supply unit, and is configured on a different structure which is adjacent to a structure provided with the metal pattern in a surface-mounted manner.
Description
Technical field
The utility model relates to a kind of portable terminal device built-in aerial, relate in particular to a kind of can be in the limitation space structure of portable terminal device extension frequency bandwidth or realize the portable terminal device built-in aerial of multiband antenna.
Background technology
" portable terminal device " on ordinary meaning refers to and can make user at the electronic installation that carries the radio communication between middle execution and the other side.Consider portability, this portable terminal device is being tending towards miniaturization, ultrathin, pocketing, lightweight, and has towards the trend of multimedization future development that can pursue more various function.
The use of portable terminal device is in the future more and more miniaturization, lightweight, multi-functional, many objects, and will be deformed into and can adapt to various multimedia environments or internet environment.
For example, providing Digital Broadcasting Receiver, GPS(global positioning system by portable terminal device at present, Global Positioning System), bluetooth (Bluetooth), radio-frequency (RF) identification (RFID, Radio Frequency Identification), Mobile business (Mobile Commerce) etc. utilize the service of communication function.
For this service is provided, portable terminal device has more than one antenna.Antenna be a kind of in order to realize radio communication by electromagnetic wave effectively to free space radiation or effectively receive electromagnetic device from free space.Due in design and performance, internally-arranged type antenna ratio externally positioned type antenna is used widely recently.
The all antennas that comprise built-in/externally positioned type antenna all need the radiant body (Radiator) for receiving and send wireless signal.Radiant body for example typically refer to, in order to receive and send electronic signal (wireless communication signal) use for the device to space radiation electronic signal.
Past is due to audio communication is merged and being used with antenna and data communication antenna, therefore the large problem that only uses an antenna radiator also not use, but recently along with the data communication relevant to multimedia increases, only become and be difficult to provide multinomial service with an audio communication antenna, thereby produce the demand to data communication dedicated antenna.
And, aspect talking mode, along with the 3G by present civilian is to the development of 4G Long Term Evolution (LTE, Long Term Evolution) talking mode, there is increasing separately the trend that antenna number that 4G communication antenna etc. is mounted on portable terminal device increases.
Thus, the antenna assignment space of portable terminal device reduces relatively, thereby guarantees to have difficulties aspect the space for mounting multiple antennas in the space of limitation.
And, on Antenna Design, between the performance of antenna and the miniaturization of antenna, there is balance (trade off) relation.Want the performance of antenna to improve towards directions such as high efficiency, wider bandwidth, high-gain, support multiband, lower electromagnetic wave absorptivities, the miniaturization difficulty of antenna strengthens.
Therefore be, when meeting desired properties, to make the shared area of antenna as far as possible little by Antenna Design according to the application target of antenna.
Utility model content
In order to solve technical problem as above, though the purpose of this utility model be to provide a kind of also can extension frequency bandwidth in the small space of portable terminal device inside or realize the portable terminal device built-in aerial of multiband antenna.
Aforesaid content is that the personnel in order to contribute to have in this area general knowledge illustrate by the utility model described later and understand better the utility model and content that feature of the present utility model and technical advantage are a little broadly sketched.Illustrate except fully understanding these feature and advantage by the utility model described later, can also fully understand the supplementary features of the present utility model and the advantage that form the utility model interest field theme.
In order to reach object as above, according to one side of the present utility model, provide a kind of portable terminal device built-in aerial to comprise: the first antenna, receives and send electromagnetic wave by metal pattern; The second antenna, is disposed on the different structure thing adjacent with the works that is pasted with described metal pattern, and described the first antenna and the second antenna are diverged by single power supply unit or short-circuit unit.
Preferably, described the second antenna is made up of the antenna identical with described the first antenna resonance point.
Preferably, described the second antenna is made up of the antenna different from described the first antenna resonance point and realizes multiband antenna.
Preferably, described the first antenna is mounted on carrier, and described the second antenna is mounted on the different layers of the printed circuit board (PCB) adjacent with described carrier.
Preferably, described the first antenna is constituted as at least one in the antenna of monopolar configuration, dipole structure, loop configuration.
Preferably, described the second antenna is formed and is electrically connected with described short-circuit unit or single power supply unit by contact.
Preferably, described the second antenna be mounted on the side of described printed circuit board (PCB) and above at least one face on.
Preferably, described the second antenna is formed by the ground plane of described printed circuit board (PCB), and receives and send electromagnetic wave by described ground plane.
Preferably, described the first antenna and the second antenna be respectively antenna, the antenna forming by rear welding, FPCB antenna, the LDS antenna of metal lining pattern the antenna that forms along Z-direction with being connected of through hole from PIFA antenna, layer printed circuit board by stepped construction, carrier and the antenna that forms by extra quality injection at least one.
For the attainment of one's purpose, according on the other hand of the present utility model, provide a kind of portable terminal device built-in aerial, it is characterized in that, comprising: single power supply unit; The first antenna, by for receiving to described single power supply unit and the circuited transmission being mounted on the metal pattern carrier the electrical signal transfer receiving from described single power supply unit and transmission electromagnetic wave; The second antenna, formed by the ground plane being formed on the part that is configured in the printed circuit board (PCB) on the layer different from described carrier, described ground plane also diverges by short-circuiting terminal or the power supply terminal of described the first antenna by the short-circuiting terminal or the power supply terminal that are contacted with described the first antenna, and by receiving and send electromagnetic wave for the electrical signal transfer that will receive from described ground plane to the circuited transmission described ground plane and described power supply unit.
For the attainment of one's purpose, according on the other hand of the present utility model, provide a kind of portable terminal device built-in aerial, it is characterized in that, comprising: single power supply unit; Multiple antennas, from described single power supply unit fork, and are mounted on adjacent different parts.
Preferably, described multiple antenna is mounted at least one in carrier and the printed circuit board (PCB) on the different layers that is configured in portable terminal device inside.
Preferably, described multiple antenna comprises mutually different physical property.
For the attainment of one's purpose, according on the other hand of the present utility model, provide a kind of portable terminal device built-in aerial, it is characterized in that, comprising: ground unit; Carrier antenna, has the first radiant body that is mounted on carrier and is electrically connected with described ground unit; PCB antenna, has the second radiant body on the side that is mounted on the printed circuit board (PCB) separating with described carrier, and have be provided to described printed circuit board (PCB) above and with described ground unit contact the short-circuiting terminal that is connected with described the second radiant body.
Form antenna with built-in aerial by utilizing from printed circuit board (PCB) and the carrier of single supply terminals punishment trouble according to portable terminal device of the present utility model, thereby can in the limitation space structure of portable terminal device, effectively expand frequency bandwidth or realize multiband antenna.
Brief description of the drawings
Fig. 1 and Fig. 2 are the figure that expresses the summary structure of the common PIFA antenna (inverted F shaped antenna, Planar Inverted F Antenna) according to prior art.
Fig. 3 is the plane graph of expressing the summary structure of portable terminal device of the present utility model built-in aerial.
Fig. 4 is the stereogram of the built-in aerial of portable terminal device shown in Fig. 3.
Fig. 5 to Fig. 8 is the circuit diagram diagrammatically representing according to the various embodiments of portable terminal device of the present utility model built-in antenna arrangement.
Fig. 9 a is the figure above that diagrammatically represents the printed circuit board (PCB) that is pasted with the second antenna of the present utility model.
Fig. 9 b is the figure that diagrammatically represents the side of the printed circuit board (PCB) that is pasted with the second antenna of the present utility model.
Figure 10 a is the curve chart that represents only to have realized the resonance frequency in the situation of carrier antenna of the prior art.
Figure 10 b represents to realize the curve chart according to the resonance frequency from the carrier antenna of single supply terminals fork and the situation of PCB antenna of the present utility model simultaneously.
Figure 11 is the figure above that diagrammatically represents the printed circuit board (PCB) that is pasted with the second antenna of the present utility model.
Figure 12 a is the curve chart of expressing the resonance frequency being formed by carrier antenna of the prior art.
Figure 12 b expresses the curve chart of having realized according to the many resonance frequencys from the carrier antenna of single supply terminals fork and the situation of PCB antenna of the present utility model.
Symbol description:
Embodiment
Below, with reference to accompanying drawing, embodiment of the present utility model is described in more detail.Notice that same inscape represents with prosign as far as possible in the accompanying drawings.And, will omit likely making the detailed description of the ambiguous known function of purport of the present utility model and formation.
In embodiment of the present utility model, portable terminal device can be used as panel computer, mobile communication terminal, mobile phone, personal information terminal (PDA, Personal Digital Assistant), smart mobile phone (smart phone), IMT-2000 (international mobile telephone system-2000, International Mobile Telecommunication2000) terminal, CDMA (code division multiple access, Code Division Multiple Access) terminal, WCDMA (Wideband Code Division Multiple Access (WCDMA), Wideband Code Division Multiple Access) terminal, GSM (global system for mobile communications Global System for Mobile communication) terminal, GPRS (general packet radio service technology, General Packet Radio Service) terminal, EDGE (enhanced data GSM evolution technology, Enhanced Data GSM Evolution) terminal, UMTS (universal mobile telecommunications system, Universal Mobile Telecommunication Service) terminal, digital broadcasting (Digital Broadcasting) terminal, all information communication devices and the multimedia equipments such as ATM (ATM, Automated Teller Machine), and can also be used for the application of these equipment.
Fig. 1 and Fig. 2 are the figure that expresses the summary structure of the common PIFA antenna (planar inverted F-shape antenna, Planar Inverted F Antenna) according to prior art.
With reference to Fig. 1 and Fig. 2, PIFA antenna 10 is made up of ground unit 12, radiant body 14, the power supply unit 16 that comprises power supply terminal 15 and short block (not shown) under normal circumstances.The title of PIFA antenna 10 is to obtain because the global shape being formed by radiant body 14, power supply terminal 15, short block is similar to inverted English alphabet " F ".
Ground unit 12 normally uses Copper Foil (Copper Plate) in the upper formation of circuit substrate (PCB:Printed Circuit Board).Radiant body 14 is made up of conductor, and from power supply unit 16 received current supplies and radiated electromagnetic wave.Radiant body 14 and ground unit 12 are separated and arranged.
Power supply unit 16 supplies induced current to radiant body 14.Power supply terminal 15 can be constituted as the form of power supply pin (Feed pin) or be configured to the form of supply lines (feed line).
Short block gives short circuit for ground unit 12 is connected with radiant body 14.Short block can be constituted as form or the platy morphology of short circuit pin (short pin).
In PIFA antenna 10, supply induced current by power supply unit 16 to radiant body 14, the electric current of supply is passed to ground unit 12 by short block after the radiant body 14 that circulated.By in this PIFA antenna 10, have current cycle circuited transmission and to radiated electromagnetic wave in air.In the time that PIFA antenna 10 receives electromagnetic wave, PIFA antenna 10 is by being received electromagnetic wave because of radiant body 14 by the circuited transmission of excitation of electromagnetic wave generation current circulation.
In addition, because causing this PIFA antenna 10 of the prior art, the small space of portable terminal device inside having difficulties aspect the radiant body 14 of realizing for improving antenna performance.
,, in order to realize the good antenna performances such as broad bandwidth, high efficiency, high-gain, support multiband, lower electromagnetic wave absorptivity, need to guarantee the broad space for arranging radiant body 14.
Fig. 3 is the plane graph of expressing the summary structure of portable terminal device of the present utility model built-in aerial, and Fig. 4 is the stereogram of the built-in aerial of portable terminal device shown in Fig. 3.
With reference to Fig. 3 and Fig. 4, portable terminal device of the present utility model comprises with built-in aerial 100: the first antenna 121, receives and send electromagnetic wave by obtained the metal pattern of power supply by power supply unit 110; The second antenna 131, diverges from power supply unit 110, and is arranged in the region different from the first antenna; And tuning circuit 140.At this, power supply unit 110 can be replaced with short-circuit unit.
Especially, portable terminal device of the present utility model is presented as and is different from the MIMO(multiple-input and multiple-output on a printed circuit board (PCB) (PCB) by plural antenna arrangement completely with built-in aerial 100, Multi Input Multi Output) structure of antenna structure.
, it is characterized by and be not the first antenna 121 and the second antenna 131 to be provided on same printed circuit board (PCB) or same carrier, but diverge from single power supply unit 110, and be provided to respectively mutually different region.
And except the first antenna 121 and the second antenna 131, portable terminal device of the present utility model can also comprise the multiple antennas that diverge from single power supply unit 110 of extra formation with built-in aerial 100.Preferably, described multiple antennas diverge from single power supply unit 110, and are mounted on and are arranged in and are pasted with the carrier 200 of the first antenna 121 and are pasted with on the internal part of the portable terminal device on the different layer of the printed circuit board (PCB) 300 of the second antenna 131.And, described multiple antennas can be configured to the different antenna of physical property.
Particularly, the first antenna 121 is mounted on the carrier 200 of portable terminal device inside, the second antenna 131 is mounted on the printed circuit board (PCB) 300 of the lower floor that is adjacent to described carrier, and the first antenna 121 and the second antenna 131 are from same power supply unit 110 or short-circuit unit fork.The second antenna 131 for example can be connected in portable terminal device inside and is arranged in along Z axis on the power supply unit 110 on different layers by being in electrical contact with the structure of metal terminal.
Although suppose that in embodiment of the present utility model the first antenna 121 is mounted on carrier 200 and the second antenna 131 is mounted on printed circuit board (PCB) 300, but need explain in advance, the first antenna 121 and the second antenna 131 can be presented as respectively PIFA antenna, the antenna forming along Z-direction with being connected of through hole by the layer printed circuit board of stepped construction, the antenna of metal lining pattern on carrier, the antenna forming by rear welding (Rear fusion), FPCB(flexible printed circuit board) antenna, LDS (laser direct structuring technique, Laser Direct Structuring) antenna, and at least one in the antenna forming by extra quality injection.
For example can prepare with insulative resin for the carrier 200 that mounts the first antenna 121, described carrier 200 plays the effect of the radiant body 120 that supports the first antenna 121.The first antenna 121 can be formed as spiral (Helical) structure, PIFA(plane inverse-F on described carrier) at least one in the structure such as structure, monopolar configuration, dipole structure, loop configuration.The first antenna 121 and the second antenna 131 can obtain feed (Feeding) and received current from power supply unit 110 respectively.
The second antenna 131 can by be mounted on the side of printed circuit board (PCB) 300 or above at least one face on metal pattern realize.The second antenna 131 can be formed as at least one in the structure such as helical structure or PIFA structure.
Can utilize metal deposition and form the first antenna 121 and the second antenna 131, can select the metal materials such as gold, silver, copper, nickel, aluminium, wherein, conventionally use copper (Copper) from the viewpoint of expense.
On printed circuit board (PCB) 300, can also there is the tuning circuit 140 being electrically connected with the second antenna 131.Tuning circuit 140 can change the bandwidth of the second antenna 131, thereby reaches the tuning object of the second antenna 131.
Particularly, with reference to Fig. 5 to Fig. 8 and to being elaborated by the structure of built-in aerial according to the portable terminal device of the utility model embodiment.
Fig. 5 to Fig. 8 is the circuit diagram of diagrammatically expressing according to the various embodiments of the portable terminal device of the utility model embodiment built-in antenna arrangement.
With reference to Fig. 5, comprise with built-in aerial according to the portable terminal device of the utility model the first embodiment: the first antenna 121 and the second antenna 131 that is mounted on printed circuit board (PCB) 300 that are mounted on carrier 200.
On the circuit diagram of Fig. 5, carrier 200 is arranged on same plane seemingly with printed circuit board (PCB) 300, but is actually as shown in Figure 4, and carrier 200 is provided on different layers with printed circuit board (PCB) 300.
The first embodiment shown in Fig. 5 represents the example that the second antenna 131 diverges from power supply (Feeding) unit 122 of the first antenna 121.
With reference to Fig. 5 and Fig. 9 a, Fig. 9 b, be in electrical contact with the power supply unit 122 of the first antenna 121 by making to be provided to the current feed terminal 132 of the second antenna 131 on printed circuit board (PCB) 300, thereby the first antenna 121 and the second antenna 131 can diverge from a power supply unit 122.At this, the second antenna 131 can be mounted at least one face above or in side of printed circuit board (PCB) 300.The resonance frequency of the second antenna 131 is to determine according to the dielectric constant of the whole length of radiant body, bending level and vertical length, printed circuit board (PCB) 300 etc.
Come with reference to Fig. 5, the second antenna 131 can also have tuning circuit 140 on printed circuit board (PCB) 300 again.Tuning circuit 140 can be made up of inductor (inductor) 141, and described inductor 141 can be by regulating the length of radiant body 130 to determine resonance frequency and the bandwidth of the second antenna 131.
, inductor 141 can be by change resonance frequency and the bandwidth of the next frequency band and upper frequency band according to inductance value, thereby carry out tuning to the second antenna 131.Conventionally, the method for adjusting inductance is, if minimized the thickness of the coil length that makes coil is increased simultaneously, and increases coil winding in the number of times of spool, and inductance value will increase thereupon.
To carry out the explanation of following summary according to antenna operation principle of the present utility model: in the first antenna 121, supply induced current by power supply unit 122 to radiant body, the electric current of supply is passed to ground unit 126 by short block after the described radiant body that circulated.This first antenna 121 produces radiated electromagnetic wave in the circuit transmission alignment air circulating by electric current.Receive in electromagnetic situation at the first antenna 121, the first antenna 121 is also by means of being received electromagnetic wave because of radiant body 120 by the circuited transmission of excitation of electromagnetic wave generation current circulation.
In the second antenna 131, supply induced current by power supply unit 122 to radiant body 130, the electric current of supply is passed to by short block the ground unit (not shown) being provided on printed circuit board (PCB) after the radiant body 130 that circulated.Radiated electromagnetic wave in the circuit transmission alignment air that this second antenna 131 circulates by generation current.Receive in electromagnetic situation at the second antenna 131, the second antenna 131 is also by means of being received electromagnetic wave because of radiant body 130 by the circuited transmission of excitation of electromagnetic wave generation current circulation.
The second embodiment shown in Fig. 6 represents that the second antenna 131 is constituted as the example diverging from power supply (Feeding) unit 122 of the first antenna 121.
Similarly as shown in Fig. 9 a and Fig. 9 b, can be electrically connected with the power supply unit of the first antenna 121 by the power supply terminal 132 that makes to be provided to the second antenna 131 on printed circuit board (PCB) 300, thereby the first antenna 121 and the second antenna 131 are diverged from a power supply unit 122.
With reference to Fig. 9 a, Fig. 9 b and Fig. 6, the second antenna 131 can also be equipped with tuning circuit 140 on printed circuit board (PCB) 300 in the lump.Tuning circuit 140 can be constituted as the structure that capacitor 142 and inductor 141 are connected in parallel.The tuning circuit 140 of the second embodiment can play the effect for making the impedance matching circuit that the first antenna 121 mates with the impedance phase of the second antenna 131.And, impedance matching circuit can be designed to calculate according to the impedance matching value of the operating frequency of aerial signal, to can realize in advance the impedance matching adapting therewith.
The 3rd embodiment as shown in Figure 7 represents that the second antenna 131 is constituted as the example diverging from ground connection (Grounding) unit 126 of the first antenna 121.
In the lump with reference to Fig. 7 and Fig. 9 a, Fig. 9 b, by the short-circuiting terminal 134 of the second antenna 131 that is provided to printed circuit board (PCB) 300 and the ground unit 126 of the first antenna 121 are electrically contacted, thereby can make first day line 121 and the second antenna 131 diverge from a ground unit 126.
At this, the second antenna 131 can be mounted at least one face above and in side of printed circuit board (PCB) 300.The resonance frequency of the second antenna 131 is to determine according to the dielectric constant of the whole length of radiant body, bending level and vertical length, printed circuit board (PCB) 300 etc.
Come with reference to Fig. 7, the second antenna 131 can also be equipped with tuning circuit 140 on printed circuit board (PCB) 300 again.Tuning circuit 140 can be made up of inductor 143, and inductor 143 can be by regulating the length of the second antenna 131 to determine resonance frequency and the bandwidth of the second antenna 131.
, inductor 143 can be by change resonance frequency and the bandwidth of the next frequency band and upper frequency band according to inductance value, thereby carry out tuning to the second antenna 131.Conventionally, the method for adjusting inductance is, if minimized the thickness of the coil length that makes coil is increased simultaneously, and increases coil winding in the number of times of spool, and inductance value will increase thereupon.
The 4th embodiment as shown in Figure 8 represents that the second antenna 131 is constituted as the example diverging from the ground unit 126 of the first antenna 121.
Similarly as shown in Fig. 9 a and Fig. 9 b, by making to be provided to the short-circuiting terminal 134 of the second antenna 131 on printed circuit board (PCB) 300 and the ground unit 126 of the first antenna 121 is electrically connected, thereby can make first day line 121 and the second antenna 131 diverge from a ground unit 126.
Come with reference to Fig. 8, the second antenna 131 can also be equipped with tuning circuit 140 on printed circuit board (PCB) 300 again.Tuning circuit 140 can be constituted as the structure that capacitor 143 and inductor 144 are connected in parallel.The tuning circuit 140 of the second embodiment can play the effect for making the impedance matching circuit that the first antenna 121 mates with the impedance phase of the second antenna 131.
And, described impedance matching circuit can be designed to calculate according to the impedance matching value of the operating frequency of aerial signal, to can realize in advance the impedance matching adapting therewith.For antenna, the variation of frequency band can comprise the adjusting to resonance frequency, electromagenetic wave radiation pattern, impedance matching etc.
In addition, for for the built-in aerial of the utility model embodiment, if by the resonance point of the first antenna connecting by supply terminals or short dot (can called after carrier antenna) be designed to mutually the samely by be mounted on resonance point that the second antenna printed circuit board (PCB) (can called after PCB antenna) pattern forms from described supply terminals or short dot fork, overlapped effect is brought into play and can be expanded frequency bandwidth.In contrast, if the first antenna and the resonance point of the second antenna are designed to not identical, can form multiband antenna.
To this, be described in detail referring to Fig. 9 a to Figure 12 b.
Fig. 9 a, Fig. 9 b be respectively diagrammatically express be pasted with the second antenna 131 printed circuit board (PCB) 300 above, the figure of side.Especially, represented that the second antenna 131 is mounted on the example of portable terminal device upper end.
With reference to Fig. 9 a and Fig. 9 b, the second antenna 131 comprises power supply terminal 132 and short-circuiting terminal 134 on printed circuit board (PCB) 300, and comprises the radiant body 130 being connected with these terminals.In figure, represent that radiant body 130 is mounted on the example of printed circuit board (PCB) 300 sides.As shown in Figure 4, can make power supply terminal 132 and the power supply unit 122 that is mounted on the first antenna 121 on carrier 200 electrically contact, or can make the ground unit 126 of short-circuiting terminal 134 and the first antenna 121 electrically contact.
So the carrier antenna 120 connecting by a supply terminals 110 and the resonance point of PCB antenna 130 are designed in identical situation, can obtain overlapped effect and make frequency bandwidth expand as broadband.
Figure 10 a is the curve chart that represents only to have realized the resonance frequency in the situation of carrier antenna of the prior art, and Figure 10 b represents to realize the curve chart according to the resonance frequency from the carrier antenna of single supply terminals fork and the situation of PCB antenna of the present utility model simultaneously.
Known with reference to Figure 10 a and Figure 10 b, the situation low-resonance frequency band of only realizing carrier antenna 120 is relatively narrow, and in the utility model, identical by the resonance point of the PCB antenna 130 diverging with carrier antenna 120 from single supply terminals is designed to the resonance point of carrier antenna 120, thus resonance bands is expanded on the basis of existing technology.
Figure 11 is the figure above that diagrammatically expresses the printed circuit board (PCB) 300 that is pasted with the second antenna 131.Especially represented that the second antenna 131 is mounted on the example of the lower end of portable terminal device.
With reference to Figure 11, the second antenna 131 comprises power supply terminal 132 and short-circuiting terminal 134 on printed circuit board (PCB) 300, and comprises the radiant body 130 being connected with these terminals.In figure, represent that radiant body 130 is mounted on printed circuit board (PCB) 300 example above.As shown in Figure 4, can make power supply terminal 132 and the power supply unit 122 that is mounted on the first antenna 121 on carrier 200 electrically contact, or can make the ground unit 126 of short-circuiting terminal 134 and the first antenna 121 electrically contact.
So the carrier antenna 120 connecting by a supply terminals is designed to, in different situations, can realize multiband antenna from the resonance point of PCB antenna 130.
Figure 12 a is the curve chart of expressing the resonance frequency being formed by carrier antenna of the prior art, and Figure 12 b expresses the curve chart of having realized according to the many resonance frequencys from the carrier antenna of single supply terminals fork and the situation of PCB antenna of the present utility model.
Known with reference to Figure 12 a, be the resonance point of being realized 2400MHz by a carrier antenna 120 in the prior art, thereby form bluetooth (BT:Blue Tooth) antenna.
Known with reference to Figure 12 b, during according to the utility model, by having realized the resonance point of 5800MHz with carrier antenna 120 at the PCB antenna 130 of single supply terminals punishment trouble, thereby form WIFI antenna, realize thus multiband antenna.
, can realize multiband antenna by the antenna with the different resonance points that diverge from single supply terminals.
In the embodiment with reference to Figure 12 a and Figure 12 b, although only represented BT antenna and WIFI antenna, but in addition can be by GPS (global positioning system, Global Positioning System), GSM (global system for mobile communications, Global System for mobile communication), CDMA (code division multiple access, Code Division Multiple Access), and WCDMA (Wideband Code Division Multiple Access (WCDMA), Wideband Code Division Multiple Access) the antenna that plays communication effect in multiple antennas be configured to multiband antenna.
And, during according to the utility model, multiple the first antennas 121 can be mounted on carrier 200, and will be mounted on different other regions with carrier 200 outside printed circuit board (PCB) 300 or printed circuit board (PCB) 300, portable terminal device inside from multiple second antennas 131 of corresponding from the first antenna 121 each single bifurcation point fork.For example, the first antenna 121 and the second antenna 131 can be mounted on above battery cover, bonnet, support (Bracket), protecgulum of portable terminal device etc., and be not limited to this.
And, by the first antenna 121 being separated to the upside and the downside that are disposed at portable terminal device with the second antenna 131 according to the main radiation direction of antenna radiator and frequency band, thereby can improve the efficiency of aerial radiation gain.
In addition, be recorded in the each embodiment of the utility model in this specification and accompanying drawing just for technology contents of the present utility model being generically described and providing convenience and provide for understanding the utility model, be not intended to limit scope of the present utility model.Be that the personnel in technical field under the utility model with general knowledge can understand to also have many other variation based on the utility model technological thought to implement naturally.
Claims (14)
1. a portable terminal device built-in aerial, is characterized in that, comprising:
The first antenna, receives and sends electromagnetic wave by metal pattern;
The second antenna, is disposed on the different structure thing adjacent with the works that is pasted with described metal pattern,
Described the first antenna and the second antenna are diverged by single power supply unit or short-circuit unit.
2. portable terminal device built-in aerial as claimed in claim 1, is characterized in that, described the second antenna is made up of the antenna identical with described the first antenna resonance point.
3. portable terminal device built-in aerial as claimed in claim 1, is characterized in that, described the second antenna is made up of the antenna different from described the first antenna resonance point and realizes multiband antenna.
4. portable terminal device built-in aerial as claimed in claim 1, is characterized in that, described the first antenna is mounted on carrier, and described the second antenna is mounted on the different layers of the printed circuit board (PCB) adjacent with described carrier.
5. portable terminal device built-in aerial as claimed in claim 2, is characterized in that, described the first antenna is constituted as at least one in the antenna of monopolar configuration, dipole structure, loop configuration.
6. portable terminal device built-in aerial as claimed in claim 1, is characterized in that, described the second antenna is formed and is electrically connected with described short-circuit unit or single power supply unit by contact.
7. portable terminal device built-in aerial as claimed in claim 4, is characterized in that, described the second antenna be mounted on the side of described printed circuit board (PCB) and above at least one face on.
8. portable terminal device built-in aerial as claimed in claim 4, is characterized in that, described the second antenna is formed by the ground plane of described printed circuit board (PCB), and receives and send electromagnetic wave by described ground plane.
9. portable terminal device built-in aerial as claimed in claim 1, it is characterized in that, described the first antenna and the second antenna be respectively antenna, the antenna forming by rear welding, FPCB antenna, the LDS antenna of metal lining pattern the antenna that forms along Z-direction with being connected of through hole from PIFA antenna, layer printed circuit board by stepped construction, carrier and the antenna that forms by extra quality injection at least one.
10. a portable terminal device built-in aerial, is characterized in that, comprising:
Single power supply unit;
The first antenna, by for receiving to described single power supply unit and the circuited transmission being mounted on the metal pattern carrier the electrical signal transfer receiving from described single power supply unit and transmission electromagnetic wave;
The second antenna, formed by the ground plane being formed on the part that is configured in the printed circuit board (PCB) on the layer different from described carrier, described ground plane also diverges by short-circuiting terminal or the power supply terminal of described the first antenna by the short-circuiting terminal or the power supply terminal that are contacted with described the first antenna, and by receiving and send electromagnetic wave for the electrical signal transfer that will receive from described ground plane to the circuited transmission described ground plane and described power supply unit.
11. 1 kinds of portable terminal device built-in aerials, is characterized in that, comprising:
Single power supply unit;
Multiple antennas, from described single power supply unit fork, and are mounted on adjacent different parts.
12. portable terminal device built-in aerials as claimed in claim 11, is characterized in that, described multiple antennas are mounted at least one in carrier and the printed circuit board (PCB) on the different layers that is configured in portable terminal device inside.
13. portable terminal device built-in aerials as claimed in claim 11, is characterized in that, described multiple antennas comprise mutually different physical property.
14. 1 kinds of portable terminal device built-in aerials, is characterized in that, comprising:
Ground unit;
Carrier antenna, has the first radiant body that is mounted on carrier and is electrically connected with described ground unit;
PCB antenna, has the second radiant body on the side that is mounted on the printed circuit board (PCB) separating with described carrier, and have be provided to described printed circuit board (PCB) above and with described ground unit contact the short-circuiting terminal that is connected with described the second radiant body.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR10-2013-0025957 | 2013-03-12 | ||
| KR1020130025957A KR102025638B1 (en) | 2013-03-12 | 2013-03-12 | Interior antenna for mobile portable terminal |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203747020U true CN203747020U (en) | 2014-07-30 |
Family
ID=51346782
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420084264.5U Expired - Fee Related CN203747020U (en) | 2013-03-12 | 2014-02-26 | Built-in antenna for portable terminal |
Country Status (2)
| Country | Link |
|---|---|
| KR (1) | KR102025638B1 (en) |
| CN (1) | CN203747020U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN104377436A (en) * | 2014-11-27 | 2015-02-25 | 上海安费诺永亿通讯电子有限公司 | All-metal laptop antenna |
| CN109698399A (en) * | 2017-10-20 | 2019-04-30 | 深圳天珑无线科技有限公司 | Electronic equipment and its antenna module |
| CN110431830A (en) * | 2017-03-24 | 2019-11-08 | 三星电子株式会社 | Electronic equipment including antenna |
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| WO2016144039A1 (en) | 2015-03-06 | 2016-09-15 | Samsung Electronics Co., Ltd. | Circuit element package, manufacturing method thereof, and manufacturing apparatus thereof |
| US10477737B2 (en) | 2016-05-04 | 2019-11-12 | Samsung Electronics Co., Ltd. | Manufacturing method of a hollow shielding structure for circuit elements |
| US10477687B2 (en) | 2016-08-04 | 2019-11-12 | Samsung Electronics Co., Ltd. | Manufacturing method for EMI shielding structure |
| KR102551657B1 (en) | 2016-12-12 | 2023-07-06 | 삼성전자주식회사 | EMI shielding structure and manufacturing method for the same |
| CN107181045B (en) * | 2017-06-19 | 2024-02-20 | 上海传英信息技术有限公司 | Antenna of mobile terminal and mobile terminal with same |
| US10594020B2 (en) | 2017-07-19 | 2020-03-17 | Samsung Electronics Co., Ltd. | Electronic device having antenna element and method for manufacturing the same |
| KR102443643B1 (en) * | 2017-07-19 | 2022-09-15 | 삼성전자주식회사 | Electronic device having antenna element and manufacturing method thereof |
| CN107634350A (en) * | 2017-09-06 | 2018-01-26 | 江苏爱吉亚电子科技有限公司 | Two-in-one antenna |
| KR102373931B1 (en) | 2017-09-08 | 2022-03-14 | 삼성전자주식회사 | Electromagnetic interference shielding structure |
| KR102199614B1 (en) | 2019-12-12 | 2021-01-07 | 주식회사 이엠따블유 | An antenna unit |
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| US7274340B2 (en) | 2005-12-28 | 2007-09-25 | Nokia Corporation | Quad-band coupling element antenna structure |
| JP4632176B2 (en) | 2006-01-20 | 2011-02-16 | 株式会社村田製作所 | Antenna and wireless communication device |
| KR20070098020A (en) * | 2006-03-30 | 2007-10-05 | 엘지전자 주식회사 | Antenna and electronic equipment having the same |
| JP4894502B2 (en) | 2006-12-22 | 2012-03-14 | Ｔｄｋ株式会社 | Antenna device |
| US7595759B2 (en) | 2007-01-04 | 2009-09-29 | Apple Inc. | Handheld electronic devices with isolated antennas |
| KR101339053B1 (en) * | 2007-06-27 | 2013-12-09 | 삼성전자주식회사 | Built-in antenna and portable terminal having the same |
| KR101003590B1 (en) | 2008-09-18 | 2010-12-22 | 삼성전기주식회사 | Multi bandwidth antenna for mobile phone |
| JP2011109190A (en) | 2009-11-13 | 2011-06-02 | Nec Corp | Antenna device and portable terminal unit |
| KR101675375B1 (en) * | 2009-11-23 | 2016-11-14 | 삼성전자 주식회사 | Printed circuit board antenna built in a mobile phone |
| KR101117963B1 (en) * | 2010-05-14 | 2012-02-15 | 주식회사 모비텍 | Manufacturing Method of Internal Antenna using Multilayered Structure Dissimilar Metalsand Internal Antenna Thereof |
| KR101144421B1 (en) | 2011-02-15 | 2012-05-10 | 한양대학교 산학협력단 | Multi band internal antenna using mimo |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104377436A (en) * | 2014-11-27 | 2015-02-25 | 上海安费诺永亿通讯电子有限公司 | All-metal laptop antenna |
| CN110431830A (en) * | 2017-03-24 | 2019-11-08 | 三星电子株式会社 | Electronic equipment including antenna |
| CN110431830B (en) * | 2017-03-24 | 2021-05-11 | 三星电子株式会社 | Electronic device including antenna |
| US11258170B2 (en) | 2017-03-24 | 2022-02-22 | Samsung Electronics Co., Ltd. | Electronic device comprising antenna |
| CN109698399A (en) * | 2017-10-20 | 2019-04-30 | 深圳天珑无线科技有限公司 | Electronic equipment and its antenna module |
Also Published As
| Publication number | Publication date |
|---|---|
| KR20140111739A (en) | 2014-09-22 |
| KR102025638B1 (en) | 2019-09-26 |
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